MBR membrane sewage treatment membrane and preparation method thereof

A sewage treatment, ceramic membrane technology, applied in biological water/sewage treatment, water/sludge/sewage treatment, sustainable biological treatment, etc., can solve the problems of inconvenient production, transportation and use, and achieve high mechanical strength Economical, tight and uniform structure

Active Publication Date: 2021-06-29
苏州曦龙净化设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the diaphragm is generally a wet film, and the production process needs to be carried out in a constant temperature and humidity environment; the welding process needs to be dried for a short time before welding; the preservation process needs to be soaked in glycerin and sealed, making production and transportation inconvenient.

Method used

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Examples

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preparation example Construction

[0020] The invention also discloses an MBR membrane sewage treatment membrane and a preparation method thereof, comprising the following steps:

[0021] Step 1: Grinding the ceramic raw material to 40-80 μm.

[0022] Step 2: Put the ceramic powder into the metal mold, and then use a hydraulic press to quickly compact the loose ceramic powder to form an embryo.

[0023] Step 3: put the green body into the kiln for roasting, the furnace temperature is controlled at 1300-1600°C, roast until the particles are bonded to each other and the membrane pore structure changes slightly, and the ceramic membrane is taken out.

[0024] Step 4: Add the cotton fiber into the water and stir it thoroughly, then filter it out with a sieve, compact it with a hydraulic press and place it on a ceramic membrane.

[0025] Step 5: Put sulfuric acid into water, the ratio of water to sulfuric acid is 2:1.

[0026] Step 6: Rinse the cotton fiber with the sulfuric acid solution in step 5 for 30 seconds,...

Embodiment 1

[0032] 200 parts of ceramic raw materials are pulverized until the particle size is 40-80 μm. Mix ceramic powder with 10 parts of polyvinyl alcohol and put it into a metal mold, and then use a hydraulic press to quickly compact the loose ceramic powder to form an embryo. Put the green body into the kiln for roasting, the furnace temperature is controlled at 1500°C, and the ceramic membrane is taken out after roasting until the particles are bonded to each other and the membrane pore structure changes slightly. Add 20 parts of cotton fiber into the water, and fully stir it, then filter it out with a sieve, compact it with a hydraulic press and place it on a ceramic membrane. Put sulfuric acid into water, where the ratio of water to sulfuric acid is 2:1. Rinse the cotton fiber with the sulfuric acid solution in step 5 for 30 seconds, then quickly spray the cotton fiber with a large amount of atomized distilled water, rinse the cotton fiber with ammonia water for 1 minute, and t...

Embodiment 2

[0034] 250 parts of ceramic raw materials are pulverized until the particle size is 40-80 μm. Mix ceramic powder with 13 parts of polyvinyl alcohol and 1 part of titanium dioxide into a metal mold, and then use a hydraulic press to quickly compact the loose ceramic powder to form an embryo. Put the green body into the kiln for firing, the furnace temperature is controlled at 1300°C, and the ceramic membrane is taken out until the particles are bonded to each other and the membrane pore structure changes slightly. Add 25 parts of cotton fiber into the water, and fully stir it, then filter it out with a sieve, compact it with a hydraulic press and place it on a ceramic membrane. Put sulfuric acid into water, where the ratio of water to sulfuric acid is 2:1. Rinse the cotton fiber with the sulfuric acid solution in step 5 for 30 seconds, then quickly spray the cotton fiber with a large amount of atomized distilled water, rinse the cotton fiber with ammonia water for 1 minute, an...

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Abstract

The invention discloses an MBR membrane sewage treatment membrane, which is prepared from the following raw materials in parts by weight: 150-250 parts of a ceramic raw material, 15-25 parts of cotton fiber, 0-13 parts of polyvinyl alcohol and 0-2 parts of titanium dioxide, and further discloses a preparation method of the MBR membrane sewage treatment membrane, and the preparation method comprises the following steps: step 1, raw material preparation, step 2, blank pressing, step 3, ceramic membrane roasting, step 4, semi-permeable membrane prefabrication. step 5, a sulfuric acid solution preparation, step 6, a semi-permeable membrane preparation, and step 7, MBR membrane preparation. The invention relates to the technical field of MBR membrane preparation, and particularly provides the MBR membrane sewage treatment membrane, which is high in dimensional precision, high in degree of finish, compact and uniform in structure, high in mechanical strength and more economical in semipermeable membrane preparation and a preparation method of the MBR membrane sewage treatment membrane.

Description

technical field [0001] The invention relates to the technical field of MBR membrane preparation, in particular to an MBR membrane sewage treatment membrane and a preparation method thereof. Background technique [0002] In the field of sewage treatment and water resource reuse, MBR, also known as Membrane Bio-Reactor (Membrane Bio-Reactor), is a new water treatment technology that combines a membrane separation unit with a biological treatment unit. According to the structure of the membrane, it can be divided into flat membrane, tubular membrane and hollow fiber membrane, etc., and can be divided into microfiltration membrane, ultrafiltration membrane, nanofiltration membrane, reverse osmosis membrane and so on according to the membrane pore size. [0003] MBR flat membranes are used in municipal / industrial sewage treatment plants, and at the end of the O pool of integrated sewage treatment equipment. The membrane module composed of MBR flat membrane replaces the secondary...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/12
CPCC02F3/1268Y02W10/10
Inventor 袁雪梅
Owner 苏州曦龙净化设备有限公司
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